Blar i Institutt for marin teknikk på tittel

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    • Control allocation and observer design for autonomous ferries 

      Torben, Tobias Rye (Master thesis, 2019)
      De siste årene har det vært høy aktivitet knyttet til autonomi i skip. Grunnet relativt lav operasjonskompleksitet, utgjør bilferger en god kanditat for å drive utviklingen mot økt autonomi i skip. Denne avhandlingen ...

    • Control Allocation for Double-ended Ferries with Full-scale Experimental Results 

      Torben, Tobias; Brodtkorb, Astrid Helene; Sørensen, Asgeir Johan (Peer reviewed; Journal article, 2020)
      A novel control allocation algorithm for double-ended ferries with symmetrical thruster configuration is proposed. The allocation problem is formulated using the extended thrust representation, resulting in a four dimensional ...

    • Control Allocation for Underwater Snake Robots using Optimization Methods 

      Øvregård, Siri Bjørkedal (Master thesis, 2018)
      Although the concept of underwater vehicles has existed for a very long time, the technology within the field has progressed substantially over the recent decades. As more and more oil and gas installations and operations ...

    • Control and Estimation of Wave Energy Converters 

      Brask, Annette Kristin (Master thesis, 2015)
      The increasing scarcity of fresh water threatens the well being of both humans and the environment. Wave power desalination is a method of producing freshwater that has been in the developing stages since 1970. One of the ...

    • Control and Power Management of Shipboard DC Hybrid Power System 

      Kwon, Kiyoune (Master thesis, 2019)
      Utviklingen av marine integrerte kraftanlegg har åpnet for fullelektriske skip med elektriske fremdriftssystemer som drives av dieselgeneratorer. Videre har fartøy med DC hybrid-strømkilder som brenselcelle, superkondensator ...

    • Control and Simulation of a Thruster-Assisted Moored Offshore Vessel in Sea-ice 

      Gjessing, Ivar Aleksander (Master thesis, 2015)
      The exploration of the northern seas is constantly raising new and interesting research topics in order to adapt our technology to handle this extraordinary harsh climate. Darkness, remoteness, cold and harsh weather, and ...

    • Control Considerations for Very Large Floating Wind Turbines 

      Santos, Carlos Renan dos; Abdelmoteleb, Serageldin; Mendoza, Alejandra S. Escalera; Bachynski-Polic, Erin Elizabeth (Peer reviewed; Journal article, 2022)
      Increasingly large floating wind turbines (FWTs) are being introduced to access the offshore wind resource over deep water at lower cost. In connection with designing a 25 MW semi-submersible wind turbine, we examine the ...

    • Control of a thruster assisted position mooring system for a semi-submersible with an asymmetric mooring configuration 

      Paulsen, Magnus F. (Master thesis, 2020)
      Norsk kontinentalsokkel er værutsatt, spesielt over vinterhalvåret. Derfor er det behov for spesialbygde halvt-nedsenkbare borerigger for tøffe forhold. I et forsøk på å øke oppetiden, minske miljøutslipp og øke sikkerheten ...

    • Control of Marine Propellers: from Normal to Extreme Conditions 

      Smogeli, Øyvind Notland (Doktoravhandlinger ved NTNU, 1503-8181; 2006:187, Doctoral thesis, 2006)
      This is a thesis about control of marine propellers. All ships and underwater vehicles, as well as an increasing number of offshore exploration and exploitation vessels, are controlled by proper action of their propulsion ...

    • Control of power generated by a floating offshore wind turbine perturbed by sea waves 

      Lugni, Claudio (Peer reviewed; Journal article, 2020)
      Offshore wind energy is expected to provide a signi cant contribution to the achievement of the European Renewable Energy targets. One of the main technological issues affecting oating offshore wind turbines con- cerns ...

    • Control of the combustion process and emission formation in marine gas engines 

      Krivopolianskii, Vladimir; Valberg, Ingebrigt; Stenersen, Dag; Ushakov, Sergey; Æsøy, Vilmar (Journal article; Peer reviewed, 2018)
      A smooth transition to the use of gas engines instead of conventional engines in marine shipping is a logical pathway for compliance with tightening environmental regulations. Currently, five major gas engine concepts are ...

    • Control of Thruster Assisted Position Mooring System on Floating Production Storage and Offloading 

      Olafsen, Helle Kristine H (Master thesis, 2014)
      Denne avhandlingen er et studie på forankringssystemer på flytende produksjon, lagring, lossing (FPSO) enheter, og omfatter en undersøkelse av POSMOOR system. En modell som inneholder et thruster assistert posisjon ...

    • Control Strategies for Maneuvering in Ice Ridge and Multi Ice Regimes 

      Ueland, Sindre; Slettebø, Sverre Wendt (Master thesis, 2010)
      Operations in an arctic environment are dependent on accurate, safe and reliable Dynamic Positioning (DP) systems. Increased activities in arctic environments have lead to a demand for knowledge of different ice regimes ...

    • Control System for ROV Minerva 2 

      Holven, Erik Bjørklund (Master thesis, 2018)
      This thesis cover the development of the motion control system for a Remotely Operated Vehicle (ROV). The Norwegian University of Science and Technology are receiving a new ROV, Minerva 2, which is the topic of this thesis. ...

    • Control-Oriented Modelling for the Conversion of Surface Vessels to Unmanned 

      Swan de Freitas, Caio (Master thesis, 2020)
      Kontrollorientert modellering er en metode som er i stand til å forenkle identifiseringen og tuningen av en matematisk modell for et fartøy. Metoden kan representere dynamikken til fartøy som opererer i et bredt utvalg av ...

    • Controller Analysis in Real-Time Hybrid Model Testing of an Offshore Floating System 

      Vilsen, Stefan Arenfeldt; Sauder, Thomas Michel; Føre, Martin; Sørensen, Asgeir Johan (Chapter, 2018)
      This paper presents an experimental study using Real-Time Hybrid Model (ReaTHM) testing of a moored floating cylindrical buoy, conducted in a wave basin. ReaTHM testing is a method for studying the dynamics of marine ...

    • Controlling pipeline global buckling behaviour by installing prebent sections 

      Johansen, Martin (Master thesis, 2020)
      Offshore rørlegging er ganske vanlig i offshoreindustrien. Disse operasjonene blir mer og mer komplekse på grunn av nye utfordringer som krever komplekse løsninger. Rørleggingsmetoden studert i denne oppgaven kalles J-lay. ...

    • Controlling toughness and strength of FDM 3D-printed PLA components through the raster layup 

      Kiendl, Josef; Gao, Chao (Journal article; Peer reviewed, 2020)
      We investigate the influence of raster layup on the resulting material properties of FDM 3D-printed materials made of PLA. In particular, we investigate the resulting toughness, strength, and stiffness, with a special focus ...

    • Cooperative towing using USVs 

      Kolltveit, Eivind Liby (Master thesis, 2018)
      In the modern world autonomous systems are becoming ubiquitous - a development driven forth by symbiotic advances in multiple areas of technology as well as the omnipresent desire to cut cost and eliminate risk to humans ...

    • Correlation between Acceleration and Drivetrain Load Effects for Monopile Offshore Wind Turbines 

      Rasekhi Nejad, Amir; Bachynski, Erin Elizabeth; Li, Lin; Moan, Torgeir (Journal article; Peer reviewed, 2016)
      This paper investigates the correlation between the tower-top axial acceleration and the load effects in drivetrain components in a monopile (bottom-fixed) offshore wind turbine. In designing offshore wind turbines, it is ...